* {
    padding: 0;
    margin: 0;
}
body{
    padding: 50px;
}

#container{
    width: 80%;
    margin: 0 auto;
    height: 800px;
    background-color:#FFFFFF;
}
#smallDiv{
    width: 310px;
    height: 310px;
    position: relative;

}
#smallDiv img{
    border: 1px solid gray;
}
#zoomDiv{
    position: absolute;
    width: 100px;
    height: 100px;
    background-color: #000000;
    opacity: .2;
    cursor: move;
    left: 0;
    top: 0;
    display: none;
}

#cover{
    width: 100%;
    height: 100%;
    z-index: 10;
    position: absolute;
    left: 0;
    top: 0;
    cursor: move;
    opacity: 0;
}
#bigDiv{
    width: 310px;
    height: 310px;
    overflow: hidden;
    position: relative;
    display: none;
}
#bigDiv img{
    position: absolute;
    left: 0px;
    top: 0px;
}
